#file{
    position:fixed;
    top: 10px;
    left: 10px;
    z-index: 100;
}
* {
    margin: 0;
    padding: 0;
}

#canvas {
    display: block;
    width: 100vw;
    height: 100vh;
    background: linear-gradient(#34fdaa, #08b1ac);
}
audio {
    position: fixed;
    left: 10px;
    bottom: 10px;
    width: calc(100% - 20px);
}
